Temporary binder.



BIO-820,827.

PATENTED MAY 15, 1906.

G. A. SHOEMAKER. TEMPORARY BINDER. APPLICATION FILED APR.20, 1904.

2 SHEETS-SHEET l.

PATENTED MAY 15, 1906.

G. A. SHOEMAKER. TEMPORARY BINDER.

APPLICATION FILED n13.2o. 1904.

2 SHEETSSHEET 2.

free ends with ball-caps 5 5.

These caps 5 5 may also be removable or not,

4 UNITED srnrias arnnr OFFICE.

GEORGE A. SHOEMAKER, OF CHICAGO, ILLINOIS, ASSIGNOR TO METAL SECTIONAL FURNITURE COMPANY, OF PORTLAND, MAINE, A COR- PORATION.

Specification of Letters Patent.

TEMPORARY BINDER.

Eatenteor May 15, 1906.

To ctZZ whom, it may concern:

Be it known that I, GEORGE A. SHOEMAKER, of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Temporary Binders; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings.

My invention relates to that class of temporary binders in which the binding-posts protrude from the top or looking cover, which cover is designed to be looked upon said posts by frictional contact and in which the leaves may be removed from the binder without removing the saidlocking-cover from the posts.

My invention resides in the peculiar mechanism for locking the movable cover upon the binding-posts and the peculiar form of punching the leaves to render them easily removable.

In the drawings, Figure 1 is a perspective view of my binder in a locked or closed position. Fig. 2 is a detail view of the leaf used by me. Fig. 3 is a perpendicular view of the binding parts of my invention, and Figs. 4, 5, and 6 are details of the lock conceived in my invention.

More particularly described, 1 2 represent the covers of my binder, and 3 the leaves. The posts 4 4, which are solid or in sections, as desired, are fixed permanently to the lower cover 2 and are fitted as to their upper or These caps 5 5 may be constructed of any desirable diameter; but I prefer to construct them with a diameter slightly greater than that of the posts 4 4 in order that they may act as a stop to the adjustable cover 1 to prevent its removal from the posts, as hereinafter described.

as is preferred. The top cover 1 is designed to be locked in adjusted position upon the posts 4 4, and to effect this I provide a lock described as follows:

I secure to the top cover 1 a tube or hollow bar 6, punched with holes to correspond in size and position with the posts 4 4. Within the hollow bar 6 I place a locking-bar 7, designed to slide loosely therein. By reason of the difficulty in effecting a positive frictional lock by the contact of two pieces of metal at right angles where the metal is rigid I purl pose to so construct this locking-bar 7 that in its action against the posts it will be resilient and by virtue of this element enable the impinging against the posts to be more positively and tightly made than in the case of the rigid bar as heretofore used. As a convenient means of effecting this horizontal resiliency I construct the bar 6 in the form of a series of acute angles, as shown at Fig. 4 of the drawings, though any other means may be employed or form of bar used which has in it the element of horizontal resiliency. This locking-bar is fitted with perforations 8 8, corresponding in position with the position of posts 4 4 and the correspondingly-punched tube 6. These perforations 8 8 are slightly larger in diameter than the diameter of the posts 4 4, which may pass loosely through them.

Through a desirable perforation in the tube 6 and into a corresponding perforation 9 in the bar 7 is placed an eccentric 10. This eccentric is fitted with a circular collar 11 on its upper side, and through a desirable perforation in said eccentric is forced tightly a headed square pin 12. This pin 12 projects upward in a countersink (see Fig. 5) in the collar 11 and top of the eccentric 10 and is fitted at its upwardly-projecting end with female threads; The head of the pin 12 rests in a suitable perforation in the bottom of the tube 6. The eccentric 10- is held in position by means of a top plate 13, which I place upon the outside of the tube 6 and which is perforated in position and size to correspond with the said countersink.

I provide a thumb-piece 14, which is fitted with a shaft of the same size and shape as the said countersink, and the whole is perforated throughout with a square aperture corresponding in size with the square pin 12. Into the countersink in said collar 11 and eccentric 10 I place the shaft of the thumb-piece 14, and the aperture therein fits upon the projecting end of the pin 12. The small screw 15 is then inserted through the shaft of the thu1nb-piece 14 and engaged with the threads in the upper end of the pin 12, and by tightening the screw 15 the thumb-piece becomes firmly attached to the eccentric 10.

In operation the revolving of the thumbpiece 14 revolves the eccentric 10 and brings the cam-surface thereof into contact with the side of the perforation 9 and brings the sides posts 4 4, impinging the same and locking the cover 1 at any desired position upon the posts 4 4. A reverse movement of the thumbpiece 14 and the eccentric 10 releases the posts and the binder is unlocked. In its unlocked position the locking-cover may slide upon the posts to their extremities, where it will be stopped by the ball-caps 5 5. The leaves of the binder may then be separated and removed or inserted without the necessity of passing them over the ends of the post by irtue of the form of punching used by me. I provide the leaves (near the edge) to be bound with perforations 16, which are of form, size, and position to fit the posts 4 4, I and from these perforations 16 I slit the leaf 3 17 to its nearest edge. By means of this slit when the binder is unlocked and the leaves separated any leaf may be Withdrawn from or inserted into the binder without the removal of the cover 1 and the overlying leaves and when the leaves are held closely together when the cover 1 is forced down onto them and locked the binding strength of the leaf is approximately as strong as if the leaf had not been slit.

In my invention I purpose to construct it as herein described, but do not confine myself to the particular construction in the mat ter of detail. The tube 6 may be inclosed within the binding material of the cover 1 and form the top binding-bar of the device or 5 it may be an independent part and attached l of the perforations 8 8 into contact with the i l l l, l l l to the top binding-bar, as is preferred. The lock is complete without the tube 6, and it 3 may be eliminated, if desired. The thumbpiece 14 may be done away with, if desired, and a removable key, with a squared recess 1 to fit the upwardly-projecting end of the pin 12, may be employed to operate the eccen- 1 tric 10. The perforations 16 of the leaves may be i of any size or form or position, but must cor- I respond with the posts 4 4 employed. The

slit 17 may run straight to the edge of the 1 leaf, as illustrated, or may run to the edge on dinally-resilient bar, fitted with perforations corresponding in posit-ion and shape with and slightly larger than said posts, and means for moving said bar longitudinally, consisting of an eccentric fitted within a suitable perforation in said bar, and provided with a squared key-head and a separable key.

2. In combination with binder posts and covers, one of which is adapted to slide upon said posts, of a lock forming the binding part i of said slidmg cover, consisting of a casing, a

longitudinally-resilient bar lying within said casing, both said casing and bar being fitted with perforations corresponding in position with the said binder-posts, and means for impinging said resilient bar against said posts, consisting of an eccentric fitted in a suitable perforation in said resilient bar, substantially as described.

3. The combination with perforated leaves of a binding device comprising binder-posts engaging said perforated leaves, covers, one of which is fixed to said posts and one is adapted to slide thereupon, and a lock forming the binding part of said sliding cover, consisting of a casing, a longitudinally-resilient bar lying within said casing, both said casing and bar being fitted with perforations corresponding in position with the said binderposts, and means for impinging said resilient bar against said posts, consisting of an eccentric fitted in a suitable perforation in said resilient bar, substantially as described.

GEORGE A. SHOEMAKER.

lVitnesses:

FRANK SOHOENFELD, WALTER E. Vorc'r. 

